Proszę o pomoc ! 2-x=5-2x 5y=13 97=2x-5 43=7+9x 69-x=x+96 Prosze o pomoc !!

2-x=5-2x -x+2x=5-2 x=3 5y=13 y=13:5 y=2,6 97=2x-5 97+5=2x x=102:2 x=51 43=7+9x 43-7=9x x=36:9 x=4 69-x=x+96 -x-x=96-69 -2x=27 x=27:-2 x=-13,5

2-x=5-2x / + 2x 2 + x = 5 / -2 x = 3 5y=13 /:5 y = 2 i trzy piąte 97=2x-5 / +5 102 = 2x / :2 51 = x 43=7+9x /-7 36 = 9x /:9 4 = x 69-x=x+96 / +x 69 = 2x+96 /-96 -27 = 2x / :2 -13 ½ = x

2-x=5-2x 2x - x = 5 - 2 x = 3 -------------------- 5y=13 y = 13/5 = 2 i 3/5 = 2,6 ------------------------ 97=2x-5 2x = 97 + 5 2x = 102 x = 102/2 = 51 ----------------------- 43=7+9x 9x = 43 - 7 9x = 36 x = 36/9 = 4 ------------------------- 69-x=x+96 - x - x = 96 - 69 - 2x = 27 x = - 27/2 = 13 i 5/10 = 13½